On a side note, two things:
No, I never got the email either -- which is odd because I get ALL KINDS of EA marketing stuff, and I know I'm opted in on at least two of my accounts.
Second... Yeah, about the whole "arenas" thing... it does make you wonder how a producer's update that has to be run through marketing and by the lawyers and over the woods and through the hills before it can be given to us somehow is given the stamp of approval when it mentions a feature that's live on test center that's not, you know, actually live on test center. It does sort of lend a little credence to the theory that it's not marketing holding things up, it's just that Cal's not had time to write and rather than just say that, makes a polite excuse for it not having been done.